Eyeglasses.



L. POETON.

, EYEGLASSES.

APPLICATION 111mm 001'. 21, 1911.

1 ,038,649, Patented Sept. 17,1912.

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Nit ite? LAKVRENCE PGYETON, 01 SGUTHBI-H'DGE.

OP'JIECAL COMPANY, 0F QOUTHBRIDGA, SAGHUSETTS.

ieeeein.

Application filed Gotcha: 931

To m'Z W1 om, it lib/1]] eonmrrn.

Be it known that. l, Ln'wnnnen a citizen of the United States. residing at Sonthhritlge, in the county of li orees'ter and State of Massachusetts, have invented (-ertuin new and useful. improvements in Eyeglosees. of which the loilmving; is a specification.

My invention relates to improvements in lens attachments, and has tor its object the provision of an improved lens elip provided with means for satisfactorily securing the lene screw in position to prevent accidental loosening of the said lens screw While. per mitting of its ready withdrawal when desired.

The further object of my in ention is the provision of a lens clip eqni fipeil with means whieh shall serve both to look the lens serew against. ilCCldQllilul withdrawal and also serve to force the lens into tight engagement. with the. strap portion ol the lens clip and hold the lens against said :1 p to make such light engagement tmtn'een said parts N to aljisolutely prevent rocking; oi the lensrrelntire to its inoijinting.

[mother objeet of my invention is the provision of a lens formed with a novel term of screw receiving aperture portiolillll'ly adapted for use in eoni'ieetion with nay improved lens attaching derive.

()ther objects and advantages o'l my improved lens nttziehnient will he readily upporent lay reference to the following: deseription taken in eoi'meetion with the nenonipzinyine drawings. and it will he iimlerstood that l may main: any modifications in the speeilie structure shown and deserihed within the seep of the appended tliilll'lH nithoiit departing from or exceeding the epirit 01 my invention.

Figure i represente. l'flCl'llllQHi einhoil 'ing my invention. El represents 21 sectional view on the line il -ll ot Fig. i. Fig. ill represents a fragmentary YiLW ol? one term o1 lens for iiso in connerlionwith my uttnehnienl. l lV re nesente a HJt'l'li'lllill view on the line V---lV of Fig. ill iie'. repre llih fragmentary View (l n slightly modified conratrnr-tion of lense. Fig". it represents :i seetionzil .'l0\\' en the. line Vl---Vt ol" Fig; V. Fig. V31 represents; another 'irzrgnnezr ti ry View ol ll lens illustrating :1 still *lur- :1. view of ti lens at.-

Specification. 0'5 Letters Yet-ant.

lion,

i iii .1

A. no; roe

ther modification with lensa poeitii'in in the eerew roe airing; aperture. and Pig/vi li T ""-Siiilif-l o seetionnl view similar to Fig .i. but illustrating slight. structural niotlihri lions-z.

in the (l: es, in which similar ehnrne'ters nit l't ere" e fire employed to ilein to eorrespon lin to ighoiil: the ser news the numeral i znignsiten on ordinary lens clip having the straps 2 et-ztemlin;- npweirdly anti di'iwnwn'rilly therefrom, the t1 rnis of the clip spanning e lens 3-5 \rhieh may he oi :iny desired 1; i i-aid lens 1; has formed theretl'noiig h the orifice to receive the ordinary lens rev. which ninnes transversely oi the clip to eonneet the arms of the (lip ill" mp t end of the i011 Ur merit the eonntit nte the tire. to oihiwlnnixnt. hut in my invention hsijve ornied in one of the :E'illlfi of the lens p the di inlly transversely e: ending threaded pi e l) n'hieh p riihiy eenoiileriihly snniller than the ion; n? receiving ('nilice. and en gag-ed in the said puss K i: my iinprored locking; screw 7 lniriiig lllG screw driver enports gigging slot 8 formed in its outer end, said eerew heme; formed either with or without ?1 head as may pro-re inoetornni'nentul in the i'nonnting.

By retez'enie pnrtieiilnrly to l igj. IL it will he seen that when the. screw 7 is; in position it;v inner end lllttr; against the threads or the lens seren' 5 and thus serves to hold the lens St'lLW in position and prevent loosening): thereot, n alight loo-:enin vj ot' the old lorlc er: however, diwngnning: it'l'rom the lone .-rew to permit oil .rii'nirziwal of the taller. in the olrieet. oi my invenhowei'er. to not only loch the lens :il to force the heron in position lint into more tight en W. s l

a; lens is Hllll'it) against the orifice a being sullieiently large to permit shifting of the lens relative ens screw.

In Fig. V and VI, I have illustrated a stillfurther modification of tl said orifice, this countersink serving exactly the the recess 9 but being form and not requiring such exactitude in its construction.

In Fig. VII, 1 have illustrated anotherslight modification in which proved lens attachment and lens for mountmg in said attaelnnentwill be readily apparent, and it will be seen that I have provided an extremely simple, eficient and practical device of this character which may be constructed at a very slight expense and which will serve both to prevent the loosening of the lensscrew which occurs so freordinary eyeglasses, and which proves so disagreeable, and which will also serve to lock the being loose in the slightest de- I carried by the clip and I claim:

1e invention i of employing the notch 2. The combination with a lens clip, of a lens fitting within the clip and having-a portion thereof cut away to provide an inclined wall, and means carried by the clip and bearing against said inclined wall for wedging the lens within the clip.

3. The combination with a lens clip, of

a lens having a countersunk lens screw receiving aperture formed therein, and means engaging said countersunk portion for locking the lens in position in the cli 1-. Thecombination a lens mounted therein, a lens screw passing transversely of the clip and lens, and means for locking both the lens and the screw in position in the clip.

5. The combination with a lens clip, of a lens fitting therein, a lens screw, and means for wedgin thelens against rocking in the clip and or also locking the lens screw in position.

The combination with a lens clip, of a lens fitting therein and having a beveled portion, a lens screw passing transversely of the lens and clip,and alccking carried by the clip and so engaging the lens and lens screw as to wedge the lens in place and bite into the-threadsof the lens screw to prevent of the lens screw.

In testimony whereof I aflix my signature in presence of two witnesses.

LAWRENCE PoEToN.

Witnesses:

JOSEPH J. DnMEns, REGINALD H. WATERS.

with a lens clip, of

accidental loosening 

